| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - Consolidated Statements of Cash Flows (http://imetrix.edgar-online.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001056943 (http://www.sec.gov/CIK) | 
| Statement of Cash Flows [Abstract] | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
Statement of Cash Flows [Abstract]  | |||
Cash flows from operating activities:  | |||
Net income  | 19,583,000    | 17,723,000    | 17,649,000    | 
Adjustments to reconcile net income to net cash provided by operating activities:  | |||
Depreciation of premises and equipment  | |||
Amortization of deferred loan costs  | |||
Amortization of intangibles  | 1,186,000    | 1,195,000    | 1,334,000    | 
Amortization of loss on investment tax credits  | |||
Provision for loan losses  | 5,000,000    | 3,700,000    | 3,524,000    | 
Net loss (gain) on sale of other real estate owned  | (  | (  | |
Net loss on disposal of equipment  | |||
Loans originated for sale  | (  | (  | (  | 
Proceeds from sale of loans originated for sale  | |||
Net gain on sale of loans originated for sale  | (  | (  | (  | 
Net amortization of investment securities  | |||
Net gain on sale of investment securities  | (623,000)   | (1,189,000)   | (861,000)   | 
Life insurance investment income  | (791,000)   | (767,000)   | (778,000)   | 
Deferred income tax expense  | (  | (  | |
Stock based compensation  | |||
Net change in:  | |||
Accrued interest receivable  | (  | (  | |
Other assets  | (  | (  | |
Accrued interest payable  | (  | (  | (  | 
Other liabilities  | (  | (  | |
Net cash provided by operating activities  | |||
Cash flows from investing activities:  | |||
Proceeds from sales of investment securities available-for-sale  | |||
Proceeds from repayments of investment securities:  | |||
Available-for-sale  | |||
Held-to-maturity  | |||
Purchases of investment securities:  | |||
Available-for-sale  | (  | (  | (  | 
Net purchase redemption of restricted equity securities  | (  | (  | |
Net increase in lending activities  | (  | (  | (  | 
Investment in low income housing investment tax credits  | (  | (  | (  | 
Purchases of premises and equipment  | (  | (  | (  | 
Proceeds from the sale of premises and equipment  | |||
Purchase of investment in life insurance  | (  | ||
Proceeds from sale of other real estate owned  | |||
Net cash used in investing activities  | (  | (  | (  | 
Cash flows from financing activities:  | |||
Net increase in deposits  | |||
Proceeds from long-term debt  | |||
Repayment of long-term debt  | (  | (  | (  | 
Net increase in short-term borrowings  | (  | ||
Retirement of common stock  | (  | (  | (  | 
Settlement of stock options  | |||
Reissuance of treasury shares  | |||
Purchase of treasury stock  | |||
Net cash provided by financing activities  | |||
Net (decrease) increase in cash and cash equivalents  | (  | ||
Cash and cash equivalents at beginning of year  | 32,917,000    | ||
Cash and cash equivalents at end of year  | 39,941,000    | 32,917,000    | 31,426,000    | 
Supplemental disclosures:  | |||
Cash paid during the period for:  | |||
Interest  | |||
Income taxes  | |||
Noncash items:  | |||
Transfers of loans to other real estate  | |||
Retirement of treasury shares  | |||